/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "simix/simix.h"
+#include "private.h"
+#include "xbt/sysdep.h"
+#include "xbt/log.h"
+#include "xbt/ex.h" /* ex_backtrace_display */
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_kernel, simix,
+ "Logging specific to SIMIX (kernel)");
+
+//int __stop_at_time = -1.0 ;
+
+SIMIX_Global_t simix_global = NULL;
+
+/* static void MarkAsFailed(m_task_t t, TBX_HashTable_t failedProcessList); */
+/* static xbt_fifo_t SIMIX_buildFailedHostList(double a, double b); */
+
+/** \defgroup msg_simulation SIMIX simulation Functions
+ * \brief This section describes the functions you need to know to
+ * set up a simulation. You should have a look at \ref SIMIX_examples
+ * to have an overview of their usage.
+ * \htmlonly <!-- DOXYGEN_NAVBAR_LABEL="Simulation functions" --> \endhtmlonly
+ */
+
+/********************************* SIMIX **************************************/
+
+/** \ingroup msg_simulation
+ * \brief Initialize some SIMIX internal data.
+ */
+void SIMIX_global_init_args(int *argc, char **argv)
+{
+ SIMIX_global_init(argc,argv);
+}
+
+/** \ingroup msg_simulation
+ * \brief Initialize some SIMIX internal data.
+ */
+void SIMIX_global_init(int *argc, char **argv)
+{
+ s_smx_process_t proc;
+
+ if (!simix_global) {
+ surf_init(argc, argv); /* Initialize some common structures. Warning, it sets msg_global=NULL */
+
+ simix_global = xbt_new0(s_SIMIX_Global_t,1);
+
+ xbt_context_init();
+ simix_global->host = xbt_fifo_new();
+ simix_global->process_to_run = xbt_swag_new(xbt_swag_offset(proc,process_hookup));
+ simix_global->process_list = xbt_swag_new(xbt_swag_offset(proc,process_hookup));
+ simix_global->current_process = NULL;
+ simix_global->registered_functions = xbt_dict_new();
+ }
+}
+
+void __SIMIX_display_process_status(void)
+{
+ smx_process_t process = NULL;
+ //xbt_fifo_item_t item = NULL;
+ //int i;
+ int nbprocess=xbt_swag_size(simix_global->process_list);
+
+ INFO1("SIMIX: %d processes are still running, waiting for something.",
+ nbprocess);
+ /* List the process and their state */
+ INFO0("SIMIX: <process>(<pid>) on <host>: <status>.");
+ xbt_swag_foreach(process, simix_global->process_list) {
+ simdata_process_t p_simdata = (simdata_process_t) process->simdata;
+ // simdata_host_t h_simdata=(simdata_host_t)p_simdata->host->simdata;
+ char *who;
+
+ asprintf(&who,"SIMIX: %s on %s: %s",
+ process->name,
+ p_simdata->host->name,
+ (process->simdata->blocked)?"[blocked] "
+ :((process->simdata->suspended)?"[suspended] ":""));
+
+ free(who);
+ }
+}
+
+/* FIXME: Yeah, I'll do it in a portable maner one day [Mt] */
+#include <signal.h>
+
+static void _XBT_CALL inthandler(int ignored)
+{
+ INFO0("CTRL-C pressed. Displaying status and bailing out");
+ __SIMIX_display_process_status();
+ exit(1);
+}
+
+/** \ingroup msg_simulation
+ * \brief Launch the SIMIX simulation
+ */
+SIMIX_error_t SIMIX_main(void)
+{
+ smx_process_t process = NULL;
+ int i;
+ double elapsed_time = 0.0;
+ int state_modifications = 1;
+
+ /* Prepare to display some more info when dying on Ctrl-C pressing */
+ signal(SIGINT,inthandler);
+
+ /* Clean IO before the run */
+ fflush(stdout);
+ fflush(stderr);
+
+ surf_solve(); /* Takes traces into account. Returns 0.0 */
+/* xbt_fifo_size(msg_global->process_to_run) */
+ while (1) {
+ xbt_context_empty_trash();
+ if(xbt_swag_size(simix_global->process_to_run) && (elapsed_time>0)) {
+ DEBUG0("**************************************************");
+ }
+ /*
+ if((__stop_at_time>0) && (SIMIX_get_clock() >= __stop_at_time)) {
+ DEBUG0("Let's stop here!");
+ }*/
+
+ while ((process = xbt_swag_extract(simix_global->process_to_run))) {
+ DEBUG2("Scheduling %s on %s",
+ process->name,
+ process->simdata->host->name);
+ simix_global->current_process = process;
+/* fflush(NULL); */
+ xbt_context_schedule(process->simdata->context);
+ simix_global->current_process = NULL;
+ }
+
+ {
+ surf_action_t action = NULL;
+ surf_resource_t resource = NULL;
+ //m_task_t task = NULL;
+
+ void *fun = NULL;
+ void *arg = NULL;
+
+ xbt_dynar_foreach(resource_list, i, resource) {
+ if(xbt_swag_size(resource->common_public->states.failed_action_set) ||
+ xbt_swag_size(resource->common_public->states.done_action_set))
+ state_modifications = 1;
+ }
+
+ if(!state_modifications) {
+ DEBUG1("%f : Calling surf_solve",SIMIX_get_clock());
+ elapsed_time = surf_solve();
+ DEBUG1("Elapsed_time %f",elapsed_time);
+
+ if (elapsed_time<0.0) {
+ /* fprintf(stderr, "We're done %g\n",elapsed_time); */
+ break;
+ }
+ }
+
+ while (surf_timer_resource->extension_public->get(&fun,(void*)&arg)) {
+ DEBUG2("got %p %p", fun, arg);
+ if(fun==SIMIX_process_create_with_arguments) {
+ process_arg_t args = arg;
+ DEBUG2("Launching %s on %s", args->name, args->host->name);
+ process = SIMIX_process_create_with_arguments(args->name, args->code,
+ args->data, args->host,
+ args->argc,args->argv);
+ if(args->kill_time > SIMIX_get_clock()) {
+ surf_timer_resource->extension_public->set(args->kill_time,
+ (void*) &SIMIX_process_kill,
+ (void*) process);
+ }
+ xbt_free(args);
+ }
+ if(fun==SIMIX_process_kill) {
+ process = arg;
+ DEBUG2("Killing %s on %s", process->name,
+ process->simdata->host->name);
+ SIMIX_process_kill(process);
+ }
+ }
+
+ xbt_dynar_foreach(resource_list, i, resource) {
+ while ((action =
+ xbt_swag_extract(resource->common_public->states.
+ failed_action_set))) {
+ /*
+ task = action->data;
+ if(task) {
+ int _cursor;
+ DEBUG1("** %s failed **",task->name);
+ xbt_dynar_foreach(task->simdata->sleeping,_cursor,process) {
+ DEBUG3("\t preparing to wake up %s(%d) on %s",
+ process->name,process->simdata->PID,
+ process->simdata->host->name);
+ xbt_fifo_unshift(msg_global->process_to_run, process);
+ }
+ process=NULL;
+ }*/
+ }
+ while ((action =
+ xbt_swag_extract(resource->common_public->states.
+ done_action_set))) {
+ /*
+ task = action->data;
+ if(task) {
+ int _cursor;
+ DEBUG1("** %s done **",task->name);
+ xbt_dynar_foreach(task->simdata->sleeping,_cursor,process) {
+ DEBUG3("\t preparing to wake up %s(%d) on %s",
+ process->name,process->simdata->PID,
+ process->simdata->host->name);
+ xbt_fifo_unshift(msg_global->process_to_run, process);
+ }
+ process=NULL;
+ }*/
+ }
+ }
+ }
+ state_modifications = 0;
+ }
+
+ if (xbt_swag_size(simix_global->process_list) == 0) {
+ INFO0("Congratulations ! Simulation terminated : all processes are over");
+ return SIMIX_OK;
+ } else {
+ INFO0("Oops ! Deadlock or code not perfectly clean.");
+ __SIMIX_display_process_status();
+ if(XBT_LOG_ISENABLED(simix, xbt_log_priority_debug) ||
+ XBT_LOG_ISENABLED(simix_kernel, xbt_log_priority_debug)) {
+ DEBUG0("Aborting!");
+ xbt_abort();
+ }
+
+ INFO0("Return a Warning.");
+ return SIMIX_WARNING;
+ }
+}
+
+/** \ingroup msg_simulation
+ * \brief Kill all running process
+
+ * \param reset_PIDs should we reset the PID numbers. A negative
+ * number means no reset and a positive number will be used to set the PID
+ * of the next newly created process.
+ */
+void SIMIX_process_killall()
+{
+ smx_process_t p = NULL;
+ smx_process_t self = SIMIX_process_self();
+
+ while((p=xbt_swag_extract(simix_global->process_list))) {
+ if(p!=self) SIMIX_process_kill(p);
+ }
+
+ xbt_context_empty_trash();
+
+ if(self) {
+ xbt_context_yield();
+ }
+
+ return;
+}
+
+/** \ingroup msg_simulation
+ * \brief Clean the SIMIX simulation
+ */
+SIMIX_error_t SIMIX_clean(void)
+{
+ xbt_fifo_item_t i = NULL;
+ smx_host_t h = NULL;
+ smx_process_t p = NULL;
+
+
+ while((p=xbt_swag_extract(simix_global->process_list))) {
+ SIMIX_process_kill(p);
+ }
+ xbt_context_exit();
+
+ xbt_fifo_foreach(simix_global->host,i,h,smx_host_t) {
+ __SIMIX_host_destroy(h);
+ }
+ xbt_fifo_free(simix_global->host);
+ xbt_swag_free(simix_global->process_to_run);
+ xbt_swag_free(simix_global->process_list);
+ xbt_dict_free(&(simix_global->registered_functions));
+
+ simix_config_finalize();
+ free(simix_global);
+ surf_exit();
+
+ return SIMIX_OK;
+}
+
+
+/** \ingroup msg_easier_life
+ * \brief A clock (in second).
+ */
+double SIMIX_get_clock(void) {
+ return surf_get_clock();
+}
